EventBus 详细使用教程［在Activity、Service、Receiver中Post］，eventbusreceiver

1、添加EventBus

    compile 'de.greenrobot:eventbus:2.4.0'

         或下载相关对应的jar包

2、注册和注销EventBus

  

       @Override

   protected void onStart () { 

      super .onStart(); 

      //注册

      EventBus EventBus.getDefault().register( this ); 

      Logger.e( "EventBus注册" ); 

   }

 

  @Override

  protected void onStop () {

       super .onStop(); 

      //注销EventBus EventBus.getDefault().unregister( this );

       Logger.e( "EventBus注销" );

   }

  3、自定义消息类型

    public class MessageEvent {

 

     public String message;

     public MessageEvent(String message){

          this.message = message;

    }

 }

 4、post在Activity中的子线程中发送消息更新UI

   

       Thread  thread = new Thread(new Runnable){

          

               @Override

                public run(){

                EventBus.getDefault.post(new Message("只是EventBus在子线程中发送过来的消息"));

            

        }

 }

 

5.在Service中发消息给Activity更新UI

 

public class MyService extends Service {

    public static final String ACTION_START="ACTION_START";

    @Override
    public IBinder onBind(Intent intent) {
        return new Binder();
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        if(ACTION_START.equals(intent.getAction())){
            new MyServerThread().start();
        }

        return super.onStartCommand(intent, flags, startId);
    }

    class MyServerThread extends Thread{
        @Override
        public void run() {
            EventBus.getDefault().post(new MessageEvent("这是在MyService的MyServerThread线程中Post的消息"));
        }
    }
}

6.在Receiver中发送消息给Activity更新UI

public class MyBroadcastReceiver extends BroadcastReceiver{
    public static final String ACTION_SEND="ACTION_SEND";

    @Override
    public void onReceive(Context context, Intent intent) {

        if (ACTION_SEND.equals(intent.getAction())){
            EventBus.getDefault().post(new MessageEvent("这是在［广播］中给Activity发送消息"));
        }
    }
}